From d8aaa51bec7d9e96eab78b88f494efb937a93bfb Mon Sep 17 00:00:00 2001
From: Patick Strateman <patrick.strateman@gmail.com>
Date: Tue, 17 Nov 2015 17:01:43 -0800
Subject: [PATCH] Bail early in processing transactions in blocks only mode.

Previously unsolicited transactions would be processed as normal.
---
 src/main.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main.cpp b/src/main.cpp
index c7e67a1d7..243a64759 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4384,6 +4384,14 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
 
     else if (strCommand == "tx")
     {
+        // Stop processing the transaction early if
+        // We are in blocks only mode and peer is either not whitelisted or whitelistalwaysrelay is off
+        if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY) && (!pfrom->fWhitelisted || !GetBoolArg("-whitelistalwaysrelay", DEFAULT_WHITELISTALWAYSRELAY)))
+        {
+            LogPrint("net", "peer sent transaction in violation of protocol peer=%d\n", pfrom->id);
+            return true;
+        }
+
         vector<uint256> vWorkQueue;
         vector<uint256> vEraseQueue;
         CTransaction tx;